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Basic Concepts of Descriptive Geometry
Published in Ken Morling, Stéphane Danjou, Geometric and Engineering Drawing, 2022
The true length of a corner of the pyramid can be seen in the FE. An arc is drawn, radius equal to this true length, centre the apex of the pyramid. A second arc is drawn, radius equal to the distance from the apex of the cone to the beginning of the frustum, centre the apex of the cone. The width of one side of the pyramid, measured at the base, is measured on the plan and this is stepped round the larger arc four times.
Geometry
Published in Dan Zwillinger, CRC Standard Mathematical Tables and Formulas, 2018
Many common polyhedra are particular cases of cylinders (Section 4.20) or cones (Section 4.21). A cylinder with a polygonal base (the base is also called a directrix) is called a prism. A cone with a polygonal base is called a pyramid. Afrustum of a cone with a polygonal base is called a truncated pyramid. Formulas (4.20.1), (4.21.1), and (4.21.2) give the volumes of a general cylinder, cone, and truncated cone.
Numerical estimations in a power-law fluid flow with thermal radiation: a complete case study
Published in Radiation Effects and Defects in Solids, 2023
Abhinava Srivastav, Ch. RamReddy
There are many research articles that are related to effect of thermal radiation but a combined study of linear, quadratic and nonlinear cases for with truncated cone is not explored yet. A combination of all these cases is analysed here to have a complete study for this kind of flow problems. The geometry truncated cone plays vital role in pharmaceutics and mechanical fields e.g. deliquesced plastic processing in industries, preparation of consumable goods, etc. Also, these types of model are involved at an extensive level in fuel retrieval technologies. In aerospace industry, a frustum is the fairing between two stages of a multistage rocket, which is shaped like a truncated cone. In all these engineering areas, there is the importance of truncated cone. Since this flow is non-similar in nature, this type of analysis can be used to explore fundamentals in flow over vertical plate and full cone.